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SLC52A2

Synonyms
BVVLS2, D15Ertd747e, GPCR41, GPR172A, PAR1, RFT3, RFVT2, hRFT3
External resources
Summary
This gene encodes a membrane protein which belongs to the riboflavin transporter family. In humans, riboflavin must be obtained by intestinal absorption because it cannot be synthesized by the body. The water-soluble vitamin riboflavin is processed to the coenzymes flavin mononucleotide (FMN) and flavin adenine dinucleotide (FAD) which then act as intermediaries in many cellular metabolic reactions. Paralogous members of the riboflavin transporter gene family are located on chromosomes 17 and 20. Unlike other members of this family, this gene has higher expression in brain tissue than small intestine. Alternative splicing of this gene results in multiple transcript variants encoding the same protein. Mutations in this gene have been associated with Brown-Vialetto-Van Laere syndrome 2 - an autosomal recessive progressive neurologic disorder characterized by deafness, bulbar dysfunction, and axial and limb hypotonia.

Variant counts

The variants found in rare patients tested by 3billion are classified and counted according to ACMG guidelines. The variants with over 5% variant frequency in population genome databases ( gnomAD, dbSNP, etc) are excluded.

Pathogenic
1
Likely pathogenic
0
VUS
22,158
Likely benign
1,217
Benign
277

Patient phenotypes

Proportions of phenotypes among 1 patients carrying pathogenic or likely pathogenic variants on SLC52A2 gene are displayed below.

Phenotype class
Patients in 3billion (%)
Abnormality of head or neck
100%
Abnormality of the breast
100%
Abnormality of the endocrine system
100%
Abnormality of the musculoskeletal system
100%
Abnormality of the nervous system
100%
Growth abnormality
100%
Neoplasm
100%
Abnormal cellular phenotype
0%
Abnormality of blood and blood-forming tissues
0%
Abnormality of limbs
0%
Abnormality of metabolism homeostasis
0%
Abnormality of prenatal development or birth
0%
Abnormality of the cardiovascular system
0%
Abnormality of the digestive system
0%
Abnormality of the ear
0%
Abnormality of the eye
0%
Abnormality of the genitourinary system
0%
Abnormality of the immune system
0%
Abnormality of the integument
0%
Abnormality of the respiratory system
0%
Abnormality of the thoracic cavity
0%
Abnormality of the voice
0%
Constitutional symptom
0%

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